diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/AbstractGetCodeOwnersForPathRestIT.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/AbstractGetCodeOwnersForPathRestIT.java
index 7aa024d..9b675e8 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/AbstractGetCodeOwnersForPathRestIT.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/AbstractGetCodeOwnersForPathRestIT.java
@@ -65,13 +65,6 @@
   protected abstract String getUrl(String path);
 
   @Test
-  public void getCodeOwnerConfigForInvalidPath() throws Exception {
-    RestResponse r = adminRestSession.get(getUrl("\0"));
-    r.assertBadRequest();
-    assertThat(r.getEntityContent()).contains("Nul character not allowed");
-  }
-
-  @Test
   public void getCodeOwnersWithAccountOptions() throws Exception {
     codeOwnerConfigOperations
         .newCodeOwnerConfig()
diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/GetCodeOwnerConfigForPathInBranchRestIT.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/GetCodeOwnerConfigForPathInBranchRestIT.java
index 8ae7b98..2df8529 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/GetCodeOwnerConfigForPathInBranchRestIT.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/restapi/GetCodeOwnerConfigForPathInBranchRestIT.java
@@ -49,20 +49,6 @@
   }
 
   @Test
-  @GerritConfig(name = "plugin.code-owners.enableExperimentalRestEndpoints", value = "true")
-  public void getCodeOwnerConfigsForInvalidPath() throws Exception {
-    RestResponse r =
-        adminRestSession.get(
-            String.format(
-                "/projects/%s/branches/%s/code_owners.config/%s",
-                IdString.fromDecoded(project.get()),
-                IdString.fromDecoded("master"),
-                IdString.fromDecoded("\0")));
-    r.assertBadRequest();
-    assertThat(r.getEntityContent()).contains("Nul character not allowed");
-  }
-
-  @Test
   @GerritConfig(name = "plugin.code-owners.backend", value = "non-existing-backend")
   @GerritConfig(name = "plugin.code-owners.enableExperimentalRestEndpoints", value = "true")
   public void cannotGetCodeOwnerConfigIfPluginConfigurationIsInvalid() throws Exception {
diff --git a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerResolverTest.java b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerResolverTest.java
index 06e5ab1..dbf1012 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerResolverTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerResolverTest.java
@@ -456,8 +456,7 @@
   }
 
   @Test
-  public void resolvePathCodeOwnersWithAnnotations_annotationOnAllUsersWildcard()
-      throws Exception {
+  public void resolvePathCodeOwnersWithAnnotations_annotationOnAllUsersWildcard() throws Exception {
     CodeOwnerConfig codeOwnerConfig =
         CodeOwnerConfig.builder(CodeOwnerConfig.Key.create(project, "master", "/"), TEST_REVISION)
             .addCodeOwnerSet(